黑龙江大昆仑-白山地区酸性花岗岩体构造环境及就位机制探讨  

Structural Environment and Emplacement Mechanism of Acidic Granite Terrene in Dakunlun-Baishan Area,Heilongjiang Province

作　　者：汤鹏飞[1] 杨帅[1] 公维国[1] 赵炳新[1] 怀宝峰[1] 周殿宇[1] 

机构地区：[1]武警黄金第三支队,黑龙江哈尔滨150069

出　　处：《甘肃冶金》2013年第2期77-80,共4页Gansu Metallurgy

摘　　要：大昆仑-白山地区酸性花岗岩类包括中二叠世二长花岗岩、花岗闪长岩,晚三叠世碱长花岗岩、正长花岗岩、二长花岗岩,早白垩世花岗斑岩、二长花岗岩。中二叠世花岗岩为佳木斯-麻山地块与松嫩地块碰撞前沿深大断裂上侵产物,晚三叠花岗岩类系印支期古太平洋板块向西俯冲,沿深大断裂上侵产物,早白垩世花岗岩类为环太平洋构造域沿深大断裂上侵产物。The acidic granitoid in Dakunlun-Baishan area includes monzonitic granite and granodiorite in middle Permian, alkali feldspar granite, syenogranite and monzonitic granite in the late Triassic epoch, granitic porphyry granite and monzo- nitic granite in early Cretaceous epoch. The Middle Permian granite is the upward intrusion product along the deep fault be- fore collision of Jiamusi Mashan terrain and Songnen block, the late Triassic epoch granitoid is the upward intrusion product along the deep fault formed in Indosinian westward subduction of the Paleo-Paeific plate, and the early Cretaceous granitoid is the upward intrusion product along the deep fault circum-Pacific tectonic domain.

关 键 词：酸性花岗岩 构造环境 就位机制 黑龙江 

分 类 号：P588.121[天文地球—岩石学]